feat(dotnet): migrate core formulas, deploy tools, and blazor admin web app to .NET 10

src/dotnet/QuantEngine.Core/Class1.cs

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+namespace QuantEngine.Core;
+
+public class Class1
+{
+
+}

src/dotnet/QuantEngine.Core/Domain/AntiChasingCalculator.cs

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+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class AntiChasingResult
+    {
+        public string AntiChasingVerdict { get; set; } = "CLEAR";
+        public string AntiChasingVelocityStatus { get; set; } = "PASS";
+        public double Velocity1dInput { get; set; }
+    }
+
+    public static class AntiChasingCalculator
+    {
+        public static AntiChasingResult ComputeAntiChasing(double velocity1d)
+        {
+            string verdict;
+            string status;
+
+            if (velocity1d >= 3.0)
+            {
+                verdict = "BLOCK_CHASE";
+                status = "BLOCKED";
+            }
+            else if (velocity1d >= 1.5)
+            {
+                verdict = "PULLBACK_WAIT";
+                status = "WAIT";
+            }
+            else
+            {
+                verdict = "CLEAR";
+                status = "PASS";
+            }
+
+            return new AntiChasingResult
+            {
+                AntiChasingVerdict = verdict,
+                AntiChasingVelocityStatus = status,
+                Velocity1dInput = Math.Round(velocity1d, 4)
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/ExitDecisions.cs

@@ -0,0 +1,221 @@
+using System;
+using System.Collections.Generic;
+
+namespace QuantEngine.Core.Domain
+{
+    public class StopPriceResult
+    {
+        public double? StopPrice { get; set; }
+        public string StopPriceStatus { get; set; } = "PASS";
+        public double? Atr20Pct { get; set; }
+        public double? AtrMultiplier { get; set; }
+        public List<string> DataMissing { get; set; } = new List<string>();
+    }
+
+    public class StopActionLadderResult
+    {
+        public string Action { get; set; } = "REVIEW_HUMAN";
+        public string Reason { get; set; } = "NO_FORCED_EXIT";
+        public double QuantityPct { get; set; }
+        public double Priority { get; set; } = 7;
+    }
+
+    public class HeatThresholdResult
+    {
+        public double HardBlock { get; set; }
+        public double Halve { get; set; }
+    }
+
+    public static class ExitDecisions
+    {
+        public static StopPriceResult ComputeStopPriceCore(
+            double? entryPrice,
+            double? atr20,
+            double? currentPrice = null,
+            double? atrMultiplier = null)
+        {
+            var result = new StopPriceResult();
+
+            if (!entryPrice.HasValue)
+            {
+                result.StopPrice = null;
+                result.StopPriceStatus = "NO_STOP_PRICE";
+                result.DataMissing.Add("entry_price");
+                return result;
+            }
+
+            if (!atr20.HasValue && !atrMultiplier.HasValue)
+            {
+                result.StopPrice = entryPrice.Value * 0.92;
+                result.StopPriceStatus = "DATA_MISSING — 하네스 업데이트 필요";
+                result.DataMissing.Add("atr20");
+                return result;
+            }
+
+            if (!atrMultiplier.HasValue && (!currentPrice.HasValue || currentPrice.Value == 0))
+            {
+                result.StopPrice = entryPrice.Value * 0.92;
+                result.StopPriceStatus = "DATA_MISSING — 하네스 업데이트 필요";
+                if (!atr20.HasValue) result.DataMissing.Add("atr20");
+                if (!currentPrice.HasValue || currentPrice.Value == 0) result.DataMissing.Add("current_price");
+                return result;
+            }
+
+            if (!atrMultiplier.HasValue)
+            {
+                double atr20Pct = (atr20!.Value / currentPrice!.Value) * 100;
+                atrMultiplier = atr20Pct >= 8 ? 2.0 : 1.5;
+                result.Atr20Pct = atr20Pct;
+            }
+            else
+            {
+                result.Atr20Pct = (currentPrice.HasValue && currentPrice.Value != 0) 
+                    ? (atr20!.Value / currentPrice.Value) * 100 
+                    : (double?)null;
+            }
+
+            result.AtrMultiplier = atrMultiplier;
+            result.StopPrice = Math.Max(entryPrice.Value * 0.92, entryPrice.Value - atr20!.Value * atrMultiplier.Value);
+            result.StopPriceStatus = "PASS";
+
+            return result;
+        }
+
+        public static StopActionLadderResult ComputeStopActionLadder(Dictionary<string, object> context)
+        {
+            string GetString(string key) => 
+                context.TryGetValue(key, out var val) ? val?.ToString()?.ToUpper() ?? "" : "";
+
+            double GetDouble(string key) =>
+                context.TryGetValue(key, out var val) && double.TryParse(val?.ToString(), out var d) ? d : 0.0;
+
+            int GetInt(string key, int def = 0) =>
+                context.TryGetValue(key, out var val) && int.TryParse(val?.ToString(), out var i) ? i : def;
+
+            bool GetBool(string key) =>
+                context.TryGetValue(key, out var val) && bool.TryParse(val?.ToString(), out var b) && b;
+
+            string timingAction = GetString("timingAction");
+            if (string.IsNullOrEmpty(timingAction)) timingAction = GetString("timing_action");
+
+            int rwPartial = GetInt("rw_partial");
+            int rwPartialExcludingRw2b = GetInt("rw_partial_excluding_rw2b");
+
+            string regimePrelim = GetString("REGIME_PRELIM");
+            if (string.IsNullOrEmpty(regimePrelim)) regimePrelim = GetString("regime_prelim");
+
+            double timingExitScore = GetDouble("timingExitScore");
+            if (timingExitScore == 0) timingExitScore = GetDouble("timing_exit_score");
+
+            double profitPct = GetDouble("profitPct");
+            if (profitPct == 0) profitPct = GetDouble("profit_pct");
+
+            int daysToTimeStop = GetInt("daysToTimeStop", 9999);
+            if (daysToTimeStop == 9999) daysToTimeStop = GetInt("days_to_time_stop", 9999);
+
+            bool trailingStopBreach = GetBool("trailingStopBreach") || GetBool("trailing_stop_breach");
+            bool rw2bFastTrack = GetBool("RW2b_5d_rapid_weakness") || GetBool("rw2b_5d_rapid_weakness");
+
+            if (timingAction == "STOP_OR_TIME_EXIT_READY" || rwPartial >= 4)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "EXIT_100",
+                    Reason = timingAction == "STOP_OR_TIME_EXIT_READY" ? "STOP_OR_TIME_EXIT_READY" : "RW_EXIT_STRONG",
+                    QuantityPct = 100,
+                    Priority = 1
+                };
+            }
+
+            if (regimePrelim == "RISK_OFF" || regimePrelim == "RISK_OFF_CANDIDATE")
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "REGIME_TRIM_50",
+                    Reason = regimePrelim == "RISK_OFF" ? "REGIME_RISK_OFF" : "REGIME_RISK_OFF_CANDIDATE",
+                    QuantityPct = 50,
+                    Priority = 2
+                };
+            }
+
+            if (rw2bFastTrack && rwPartialExcludingRw2b >= 1)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_50",
+                    Reason = "RW2B_FAST_TRACK",
+                    QuantityPct = 50,
+                    Priority = 2.5
+                };
+            }
+
+            if (rwPartial >= 3 || timingExitScore >= 75)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_70",
+                    Reason = rwPartial >= 3 ? "RW_EXIT" : "TIMING_EXIT_SCORE",
+                    QuantityPct = 70,
+                    Priority = 3
+                };
+            }
+
+            if (trailingStopBreach || rwPartial >= 2 || (rwPartial >= 1 && timingExitScore >= 50))
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_50",
+                    Reason = trailingStopBreach ? "TRAILING_STOP_BREACH" : "RW_OR_TIMING_EXIT",
+                    QuantityPct = 50,
+                    Priority = 4
+                };
+            }
+
+            if (profitPct >= 10)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TAKE_PROFIT_TIER1",
+                    Reason = "PROFIT_PCT_THRESHOLD",
+                    QuantityPct = 25,
+                    Priority = 5
+                };
+            }
+
+            if (daysToTimeStop <= 0)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TIME_EXIT_100",
+                    Reason = "TIME_STOP_EXPIRED",
+                    QuantityPct = 100,
+                    Priority = 6
+                };
+            }
+
+            return new StopActionLadderResult();
+        }
+
+        public static HeatThresholdResult ComputeDynamicHeatThresholds(string regime)
+        {
+            string r = regime?.ToUpper() ?? "";
+            if (r.Contains("EVENT_SHOCK"))
+            {
+                return new HeatThresholdResult { HardBlock = 5.0, Halve = 3.5 };
+            }
+            if (r.Contains("RISK_OFF"))
+            {
+                return new HeatThresholdResult { HardBlock = 7.0, Halve = 5.0 };
+            }
+            if (r.Contains("SECULAR_LEADER") && r.Contains("RISK_ON"))
+            {
+                return new HeatThresholdResult { HardBlock = 13.0, Halve = 9.0 };
+            }
+            if (r.Contains("RISK_ON"))
+            {
+                return new HeatThresholdResult { HardBlock = 12.0, Halve = 8.5 };
+            }
+            return new HeatThresholdResult { HardBlock = 10.0, Halve = 7.0 };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/KrxTickNormalizer.cs

@@ -0,0 +1,49 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public static class KrxTickNormalizer
+    {
+        private static readonly (double Limit, int Tick)[] KrxTickTable = new (double, int)[]
+        {
+            (2000, 1),
+            (5000, 5),
+            (20000, 10),
+            (50000, 50),
+            (200000, 100),
+            (500000, 500),
+            (double.PositiveInfinity, 1000)
+        };
+
+        public static int GetTickUnit(double price)
+        {
+            foreach (var (limit, tick) in KrxTickTable)
+            {
+                if (price < limit)
+                {
+                    return tick;
+                }
+            }
+            return 1000;
+        }
+
+        public static double NormalizeTick(double price)
+        {
+            if (price <= 0) return 0;
+            int tick = GetTickUnit(price);
+            
+            // Round to nearest tick unit
+            double remainder = price % tick;
+            if (remainder == 0) return price;
+
+            if (remainder >= tick / 2.0)
+            {
+                return price + (tick - remainder);
+            }
+            else
+            {
+                return price - remainder;
+            }
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/ProfitLockCalculator.cs

@@ -0,0 +1,66 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class ProfitLockResult
+    {
+        public string RatchetStage { get; set; } = "NORMAL";
+        public double? AutoTrailingStop { get; set; }
+        public string TpLadderAction { get; set; } = "적용 안함";
+        public bool ApexSuperActive { get; set; }
+    }
+
+    public static class ProfitLockCalculator
+    {
+        public static string ClassifyProfitLockStage(double profitPct)
+        {
+            if (profitPct >= 60) return "APEX_SUPER";
+            if (profitPct >= 40) return "APEX_TRAILING";
+            if (profitPct >= 30) return "PROFIT_LOCK_30";
+            if (profitPct >= 20) return "PROFIT_LOCK_20";
+            if (profitPct >= 10) return "PROFIT_LOCK_10";
+            if (profitPct >= 0) return "BREAKEVEN_RATCHET";
+            return "NORMAL";
+        }
+
+        public static ProfitLockResult ComputeTrailingStop(
+            double profitPct,
+            double highestClose,
+            double atr20,
+            double? ratchetStop,
+            double averageCost)
+        {
+            string stage = ClassifyProfitLockStage(profitPct);
+            double baseStop = ratchetStop ?? averageCost;
+            double? trailingStop = null;
+            string tpAction = "적용 안함";
+
+            if (stage == "APEX_SUPER")
+            {
+                double raw = highestClose - 1.2 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "강제 10% 익절 권고";
+            }
+            else if (stage == "APEX_TRAILING")
+            {
+                double raw = highestClose - 1.5 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "부분익절 검토";
+            }
+            else if (stage == "PROFIT_LOCK_30" || stage == "PROFIT_LOCK_20")
+            {
+                double raw = highestClose - 2.0 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "래칫 유지";
+            }
+
+            return new ProfitLockResult
+            {
+                RatchetStage = stage,
+                AutoTrailingStop = trailingStop,
+                TpLadderAction = tpAction,
+                ApexSuperActive = stage == "APEX_SUPER"
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/PullbackTriggerCalculator.cs

@@ -0,0 +1,42 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class PullbackTriggerResult
+    {
+        public string PullbackEntryVerdict { get; set; } = "ABOVE_PULLBACK_ZONE";
+        public string PullbackState { get; set; } = "BLOCKED";
+        public double PullbackEntryTriggerPrice { get; set; }
+        public double PullbackUpperBand { get; set; }
+    }
+
+    public static class PullbackTriggerCalculator
+    {
+        public static PullbackTriggerResult ComputePullbackTrigger(double close, double ma20, double atr20)
+        {
+            double triggerPrice = KrxTickNormalizer.NormalizeTick(ma20 - 0.5 * atr20);
+            double upperBand = ma20 * 1.03;
+            string verdict;
+            string state;
+
+            if (close <= upperBand)
+            {
+                verdict = "PULLBACK_ZONE";
+                state = "PASS";
+            }
+            else
+            {
+                verdict = "ABOVE_PULLBACK_ZONE";
+                state = "BLOCKED";
+            }
+
+            return new PullbackTriggerResult
+            {
+                PullbackEntryVerdict = verdict,
+                PullbackState = state,
+                PullbackEntryTriggerPrice = triggerPrice,
+                PullbackUpperBand = KrxTickNormalizer.NormalizeTick(upperBand)
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/SellPriceSanityChecker.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+
+namespace QuantEngine.Core.Domain
+{
+    public class SellPriceSanityResult
+    {
+        public string SellPriceSanityStatus { get; set; } = "PASS";
+        public List<string> SellPriceSanityIssues { get; set; } = new List<string>();
+        public bool HtsAllowed { get; set; } = true;
+        public bool ShadowLedger { get; set; }
+        public string Ticker { get; set; } = string.Empty;
+    }
+
+    public static class SellPriceSanityChecker
+    {
+        public static SellPriceSanityResult CheckSellPriceSanity(
+            double sellLimitPrice,
+            double? stopLossPrice,
+            double prevClose,
+            string ticker = "")
+        {
+            var issues = new List<string>();
+            string status = "PASS";
+
+            if (stopLossPrice.HasValue && sellLimitPrice < stopLossPrice.Value)
+            {
+                issues.Add($"INVALID_PRICE_INVERSION: sell={sellLimitPrice:N0} < stop={stopLossPrice.Value:N0}");
+                status = "INVALID_PRICE_INVERSION";
+            }
+
+            double upperLimit = prevClose * 1.30;
+            if (sellLimitPrice > upperLimit)
+            {
+                issues.Add($"INVALID_UNREALISTIC_PRICE: sell={sellLimitPrice:N0} > prev_close*1.30={upperLimit:N0}");
+                if (status == "PASS")
+                {
+                    status = "INVALID_UNREALISTIC_PRICE";
+                }
+            }
+
+            int tickUnit = KrxTickNormalizer.GetTickUnit(sellLimitPrice);
+            if (sellLimitPrice % tickUnit != 0)
+            {
+                double corrected = KrxTickNormalizer.NormalizeTick(sellLimitPrice);
+                issues.Add($"INVALID_TICK: sell={sellLimitPrice:N0} 호가단위={tickUnit}원 → 정규화={corrected:N0}");
+                if (status == "PASS")
+                {
+                    status = "INVALID_TICK";
+                }
+            }
+
+            return new SellPriceSanityResult
+            {
+                SellPriceSanityStatus = status,
+                SellPriceSanityIssues = issues,
+                HtsAllowed = status == "PASS",
+                ShadowLedger = status != "PASS",
+                Ticker = ticker
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IKisApiClient.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IKisApiClient
+    {
+        Task<string> GetCurrentPriceAsync(string code);
+        Task<string> GetAskingPrice10LevelAsync(string code);
+        Task<string> GetDailyShortSaleAsync(string code, string startDate, string endDate);
+        Task<string> GetDailyItemChartPriceAsync(string code, string startDate, string endDate, string period = "D");
+        Task<string> GetInvestorTrendAsync(string code);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/INaverFinanceScraper.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface INaverFinanceScraper
+    {
+        Task<string> FetchPriceHistoryAsync(string code, int pages = 3);
+        Task<string> FetchForeignInstitutionFlowAsync(string code, int pages = 2);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IWorkspaceRepository.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using QuantEngine.Core.Models;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IWorkspaceRepository
+    {
+        // Settings
+        Task<IEnumerable<Setting>> GetSettingsAsync();
+        Task<Setting?> GetSettingByKeyAsync(string key);
+        Task<bool> UpsertSettingAsync(Setting setting);
+        Task<bool> DeleteSettingAsync(string key);
+
+        // AccountSnapshot
+        Task<IEnumerable<AccountSnapshot>> GetAccountSnapshotsAsync();
+        Task<bool> InsertAccountSnapshotsAsync(IEnumerable<AccountSnapshot> snapshots);
+        Task<bool> ClearAccountSnapshotsAsync();
+
+        // WorkspaceApproval
+        Task<IEnumerable<WorkspaceApproval>> GetApprovalsAsync();
+        Task<WorkspaceApproval?> GetApprovalAsync(string domain, string targetRef);
+        Task<bool> UpsertApprovalAsync(WorkspaceApproval approval);
+
+        // WorkspaceLock
+        Task<IEnumerable<WorkspaceLock>> GetLocksAsync();
+        Task<WorkspaceLock?> GetLockAsync(string domain, string targetRef);
+        Task<bool> AcquireLockAsync(WorkspaceLock @lock);
+        Task<bool> ReleaseLockAsync(string domain, string targetRef);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IYahooFinanceClient.cs

@@ -0,0 +1,9 @@
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IYahooFinanceClient
+    {
+        Task<string> FetchHistoricalDataAsync(string symbol, string range = "4mo", string interval = "1d");
+    }
+}

src/dotnet/QuantEngine.Core/Models/AccountSnapshot.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class AccountSnapshot
+    {
+        public int Ordinal { get; set; }
+        public string RowJson { get; set; } = string.Empty;
+        public string CapturedAt { get; set; } = string.Empty;
+        public string Account { get; set; } = string.Empty;
+        public string AccountType { get; set; } = string.Empty;
+        public string Ticker { get; set; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
+        public string ParseStatus { get; set; } = string.Empty;
+        public string UserConfirmed { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionRun.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionRun
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string CollectorName { get; set; } = string.Empty;
+        public string StartedAt { get; set; } = string.Empty;
+        public string? FinishedAt { get; set; }
+        public string Status { get; set; } = string.Empty;
+        public string? InputSource { get; set; }
+        public string? OutputJsonPath { get; set; }
+        public string? OutputDbPath { get; set; }
+        public string? Notes { get; set; }
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionSnapshot.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionSnapshot
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string DatasetName { get; set; } = string.Empty;
+        public string Ticker { get; set; } = string.Empty;
+        public string? Name { get; set; }
+        public string? Sector { get; set; }
+        public string? AsOfDate { get; set; }
+        public string SourcePriority { get; set; } = string.Empty;
+        public string SourceStatus { get; set; } = string.Empty;
+        public string PayloadJson { get; set; } = string.Empty;
+        public string ProvenanceJson { get; set; } = string.Empty;
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionSourceError.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionSourceError
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string? Ticker { get; set; }
+        public string SourceName { get; set; } = string.Empty;
+        public string ErrorKind { get; set; } = string.Empty;
+        public string ErrorMessage { get; set; } = string.Empty;
+        public string? PayloadJson { get; set; }
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/Setting.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class Setting
+    {
+        public int Ordinal { get; set; }
+        public string Key { get; set; } = string.Empty;
+        public string ValueJson { get; set; } = string.Empty;
+        public string Note { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceApproval.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceApproval
+    {
+        public string Domain { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = "*";
+        public string Status { get; set; } = string.Empty;
+        public string ApprovedBy { get; set; } = string.Empty;
+        public string ApprovedAt { get; set; } = string.Empty;
+        public string Note { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceChangeLog.cs

@@ -0,0 +1,17 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceChangeLog
+    {
+        public int Id { get; set; }
+        public string Domain { get; set; } = string.Empty;
+        public string Action { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = string.Empty;
+        public string Actor { get; set; } = "system";
+        public string Note { get; set; } = string.Empty;
+        public string BeforeJson { get; set; } = "null";
+        public string AfterJson { get; set; } = "null";
+        public string CreatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceLock.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceLock
+    {
+        public string Domain { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = string.Empty;
+        public string LockedBy { get; set; } = string.Empty;
+        public string Reason { get; set; } = string.Empty;
+        public string LockedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/QuantEngine.Core.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/dotnet/QuantEngine.Core/bin/Debug/net10.0/QuantEngine.Core.deps.json

@@ -0,0 +1,23 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v10.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v10.0": {
+      "QuantEngine.Core/1.0.0": {
+        "runtime": {
+          "QuantEngine.Core.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "QuantEngine.Core/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/.NETCoreApp,Version=v10.0.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v10.0", FrameworkDisplayName = ".NET 10.0")]

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.AssemblyInfo.cs

@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+9abb8d3bc31eb38d5c27cbd3ca734da4eeec9609")]
+[assembly: System.Reflection.AssemblyProductAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyTitleAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// MSBuild WriteCodeFragment 클래스에서 생성되었습니다.
+

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.AssemblyInfoInputs.cache

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src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.GeneratedMSBuildEditorConfig.editorconfig

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+build_property.TargetFramework = net10.0
+build_property.TargetFrameworkIdentifier = .NETCoreApp
+build_property.TargetFrameworkVersion = v10.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = QuantEngine.Core
+build_property.ProjectDir = C:\Temp\data_feed\src\dotnet\QuantEngine.Core\
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.EffectiveAnalysisLevelStyle = 10.0
+build_property.EnableCodeStyleSeverity = 

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.GlobalUsings.g.cs

@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using System;
+global using System.Collections.Generic;
+global using System.IO;
+global using System.Linq;
+global using System.Net.Http;
+global using System.Threading;
+global using System.Threading.Tasks;

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.csproj.CoreCompileInputs.cache

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src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.csproj.FileListAbsolute.txt

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+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\bin\Debug\net10.0\QuantEngine.Core.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.GeneratedMSBuildEditorConfig.editorconfig
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.AssemblyInfoInputs.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.AssemblyInfo.cs
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+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\refint\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\ref\QuantEngine.Core.dll

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src/dotnet/QuantEngine.Core/obj/project.nuget.cache

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+}